Install Nginx and config Google ghs proxy

nginx.sh

#!/bin/sh
# Install Nginx and config Google ghs proxy, tested on Amazon EC2 Linux
# You need first to add a domain A record point ghs to the server which runs Nginx
#  and then alias sub-domain to ghs.your_domain_name
# Author: Yuan XU
# Version: 0.1
# URL: blog.xuyuan.me

if [ -z $1 ]; then
	echo "Usage: nginx.sh [domain_name]"
	echo "For example: nginx.sh example.com"
	exit 1
fi

domain_name=$1
echo "Install Nginx and config Google ghs for domain $1"

yum erase -y nginx
yum update -y
yum install nginx -y

wget https://gist.github.com/raw/844774/97504b89ff50f355500334513ef6538a1e98e547/nginx.conf
rc=$?
if [ $rc -gt 0 ]; then
	echo "Failed to download config file for Nginx. Exit with error."
	exit 1
fi

sed "s/zexample/$domain_name/g" nginx.conf > nginx.conf.tmp
rm -f nginx.conf
mv nginx.conf.tmp /etc/nginx/nginx.conf
/etc/init.d/nginx start
rc=$?
if [ $rc -gt 0 ]; then
	echo "Failed to start Nginx. Exit with error."
	exit 1
fi

echo "Nginx is installed and running. Please point sub-domain to ghs.$domain_name"
echo "If you need customized config, you can edit /etc/nginx/nginx.conf"
exit 0